So far....all of my stuff ive been doing (PIC related) has been 5V. Now I have a 3.3V device to play with. Presently, I have the ICD1 version (non hockey Puk thing) and I know that it gets its supply voltage from the PIC circuit. But will it run on 3.3V? Or do I need to supply it with 5V, but will the programming signals exceed the limits then. Off to read the manual.... _________________________________________________________________ Grab our best dial-up Internet access offer: 6 months @$9.95/month. http://join.msn.com/?page=dept/dialup -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics